Recent content by JiggaMan

Homework Statement in circular motion (e.g. a pendulum) is the kinetic energy still 1/2 m v ^2 or is it a different equation? Homework Equations 1/2 m v ^2 The Attempt at a Solution

Homework Statement How does Fr=Ialpha work and how is it applied to a pulley with one mass attatched? Homework Equations F * r = I * alpha I = moment of inertia The Attempt at a Solution I'm assuming F would be the tension of the pulley with the string. But how does that equation work? can...

Being the genius I am, I have self-analyzed my own work and found my error. For the rotational energy. I must find the rotational energy of the mass first, then the rod: ( ( w^2 ) * .5 * 4 * .8 * .8 ) and ( ( w^2 ) (3* .8 * .8 ) / 3 ) then add them and take out the w ^ 2 since the angular...

Homework Statement The 3.0 kg rod has a length of 80 cm. The 4.0 kg rectangle attached to the rod has negligible dimensions. The entire object rotates counterclockwise about the bottom of the rod. Determine the angular speed of the apparatus at the instant the rod is horizontal...